/* === noboxAI-inspired theme: brand.css === */

/* 1) Font imports (swap if you host locally) */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Poppins:wght@500;600;700&display=swap");

/* 2) Design tokens */
:root{
  /* Colors */
  --color-primary: #22C55E;      /* Emerald */
  --color-primary-700: #059669;  /* Hover/active */
  --color-primary-50: #ECFDF5;   /* Subtle bg */
  --color-mint: #10B981;         /* Focus ring / soft accents */
  --color-accent: #F59E0B;       /* Amber */
  --color-ink: #0F172A;          /* Headings */
  --color-body: #475569;         /* Paragraphs */
  --color-border: #E5E7EB;       /* Hairline */
  --color-surface: #FFFFFF;      /* Cards */
  --color-tint: #F8FAFC;         /* Section band */

  /* Typography */
  --font-heading: "Poppins", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;

  --fs-h1: clamp(36px, 5vw, 56px);
  --lh-h1: 1.15;
  --fs-h2: clamp(28px, 3.6vw, 40px);
  --lh-h2: 1.2;
  --fs-h3: clamp(22px, 2.2vw, 28px);
  --lh-h3: 1.25;
  --fs-h4: 20px;
  --lh-h4: 1.4;
  --fs-body: 16px;
  --fs-lead: 18px;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-8: 48px;
  --space-12: 64px;
  --space-16: 96px;

  /* Radius & Shadows */
  --radius-card: 16px;
  --radius-img: 12px;
  --radius-pill: 9999px;

  --shadow-card: 0 8px 24px rgba(2, 8, 23, 0.06);
  --shadow-hover: 0 10px 32px rgba(2, 8, 23, 0.12);
}

/* 3) Base */
html { box-sizing: border-box; scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: inherit; }
body {
  font-family: var(--font-body);
  color: var(--color-body);
  font-size: var(--fs-body);
  line-height: 1.625;
  background: var(--color-surface);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; border-radius: var(--radius-img); }
a {
  color: var(--color-primary);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

/* 4) Headings */
h1, .h1 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-h1);
  line-height: var(--lh-h1);
  letter-spacing: -0.01em;
  color: var(--color-ink);
}
h2, .h2 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--fs-h2);
  line-height: var(--lh-h2);
  letter-spacing: -0.005em;
  color: var(--color-ink);
}
h3, .h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--fs-h3);
  line-height: var(--lh-h3);
  color: var(--color-ink);
}
h4, .h4 {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: var(--fs-h4);
  line-height: var(--lh-h4);
  color: var(--color-ink);
}

/* 5) Containers & sections */
.container {
  width: min(1200px, 92vw);
  margin-inline: auto;
}
.section {
  padding: var(--space-12) 0;
}
.section--hero {
  padding: var(--space-16) 0 var(--space-12);
  background: linear-gradient(0deg, rgba(255,255,255,0.0), rgba(255,255,255,0.0)),
              var(--color-tint);
}
.section--tint { background: var(--color-tint); }

/* 6) Buttons (3 layers deep) */
.btn {
  --btn-bg: var(--color-surface);
  --btn-fg: var(--color-ink);
  --btn-bd: transparent;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  border: 2px solid var(--btn-bd);
  background: var(--btn-bg);
  color: var(--btn-fg);
  box-shadow: none;
  transition: transform .04s ease, box-shadow .2s ease, background .2s, color .2s, border-color .2s;
}
.btn:focus {
  outline: 3px solid color-mix(in srgb, var(--color-mint) 45%, transparent);
  outline-offset: 2px;
}
.btn:active { transform: translateY(1px); }

/* 6.1 Primary */
.btn--primary {
  --btn-bg: var(--color-primary);
  --btn-fg: #fff;
}
.btn--primary:hover {
  --btn-bg: var(--color-primary-700);
  box-shadow: var(--shadow-hover);
}

/* 6.2 Outline */
.btn--outline {
  --btn-bg: #fff;
  --btn-fg: var(--color-primary);
  --btn-bd: var(--color-primary);
}
.btn--outline:hover {
  --btn-bg: var(--color-primary-50);
}

/* 6.3 Accent (Amber) */
.btn--accent {
  --btn-bg: var(--color-accent);
  --btn-fg: #0b0b0b;
  --btn-bd: var(--color-accent);
}
.btn--accent:hover { filter: saturate(1.08) brightness(.98); }

/* 7) Navigation */
.navbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.navbar .nav {
  display: flex; gap: 24px; padding: 14px 0;
}
.navbar a { color: var(--color-ink); font-weight: 500; }
.navbar a:hover { color: var(--color-primary); text-decoration: none; }

/* 8) Hero */
.hero {
  display: grid; align-items: center;
  gap: var(--space-6);
}
.hero .hero-eyebrow {
  font-size: 14px; letter-spacing: .12em; text-transform: uppercase; color: var(--color-body);
}
.hero .actions { display:flex; gap: 12px; flex-wrap: wrap; }

/* 9) Tiles (cards) */
.tiles { display: grid; gap: var(--space-6); }
@media (min-width: 900px){ .tiles { grid-template-columns: repeat(3, 1fr); } }

.tile {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
  transition: transform .15s ease, box-shadow .2s ease;
}
.tile:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }

.tile .tile-icon {
  width: 48px; height: 48px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--color-accent);
  margin-bottom: var(--space-4);
}
.tile h5, .tile .tile-title {
  font-family: var(--font-heading); font-weight: 600; font-size: 16px; color: var(--color-ink);
  margin: 0 0 6px 0;
}
.tile p { margin: 0; }

/* 10) Lists */
.list {
  display: grid; gap: 10px; padding: 0; margin: 0;
}
.list li {
  list-style: none; position: relative; padding-left: 28px;
}
.list li::before {
  content: ""; position: absolute; left: 0; top: 7px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--color-primary);
  box-shadow: inset 0 0 0 4px #fff;
}

/* 11) Blog feed */
.blog-grid { display: grid; gap: var(--space-6); }
@media (min-width: 900px){ .blog-grid { grid-template-columns: repeat(3, 1fr); } }
.post { display: grid; gap: 10px; }
.post .date-badge {
  display:inline-grid; place-items:center; width:56px; height:56px; border-radius:12px;
  background: var(--color-tint); color: var(--color-ink); font-weight:600;
}

/* 12) Footer */
.footer {
  padding: var(--space-12) 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}
.footer .cols {
  display: grid; gap: var(--space-6);
}
@media (min-width: 900px){ .footer .cols { grid-template-columns: 1.3fr 1fr 1fr; } }
.footer h6 { font-family: var(--font-heading); font-weight:600; font-size:14px; letter-spacing:.08em; text-transform:uppercase; color: var(--color-ink); }
.footer a { color: var(--color-ink); }
.footer a:hover { color: var(--color-primary); }

/* 13) Utilities */
.lead { font-size: var(--fs-lead); line-height: 1.66; color: var(--color-body); }
.muted { color: #64748B; }
.kicker { font-size: 13px; letter-spacing:.14em; text-transform:uppercase; color: var(--color-body); }
.band { background: var(--color-tint); padding: var(--space-12) 0; }
.center { text-align: center; }
.max-w-prose { max-width: 75ch; }

/* 14) Forms (for “Contact”) */
.input, .select, .textarea {
  width: 100%; font: inherit; color: var(--color-ink);
  padding: 12px 14px; border-radius: 12px; border: 1px solid var(--color-border);
  background: #fff;
}
.input:focus, .select:focus, .textarea:focus {
  border-color: var(--color-primary);
  outline: 3px solid color-mix(in srgb, var(--color-primary) 20%, transparent);
}

/* 15) Motion */
.btn, .tile, .post img { will-change: transform, box-shadow; }